Petroleum products — Biodiesel — Determination of free and total glycerin and mono-, di- and tracylglycerols by gas chromatography

Petroleum products — Biodiesel — Determination of total esters content by gas chromatography

Petroleum products and other liquids — Ethanol — Determination of electrical conductivity

Petroleum products and other liquids — Ethanol — Determination of total acidity by potentiometric titration

Fatty acid methyl esters (FAME) — Determination of sulfur content — Inductively coupled plasma optical emission spectrometry (ICP-OES) method

Petroleum products and other liquids — Ethanol -Test method for pH determination of ethanol fuel